Quiz
In a patient with a compatible clinical history, which spirometric result meets the COPD-X fixed-ratio criterion?
A
Post-bronchodilator FEV1/FVC <0.7
B
Pre-bronchodilator FEV1/FVC >0.8
C
Post-bronchodilator FVC <0.7 L
D
FEV1 alone above its predicted value
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Respiratory
COPD-X: C2.3 Spirometry
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